Linear vibration motor having accommodation spaces provided for magnets in a support member
US11211857B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2019 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | May 18, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K41/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A linear vibration motor includes a housing with a first accommodation space, a vibration unit, an elastic part and a coil assembly fixed on the housing. The vibrating unit includes a support connected with the elastic part, and includes a top wall perpendicularly to a vibrating direction of the vibrating unit, a side wall bending and extending from a periphery of the top wall, a through hole penetrating the top wall, and two separation walls respectively bending and extending from the two opposite sides of the through hole. The top wall and the side wall enclose to form a second accommodation space which is divided by the two separation walls into a main accommodation space and two auxiliary accommodation spaces. The linear vibration motor further includes at least one weight block accommodated and fixed in the auxiliary accommodation spaces, and at least one magnet respectively fixed to the support.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.